Lamp



FIG. 1 is a perspective view of a lamp showing my new design with a hinged arm pivoted to an open position;

FIG. 2 is a top view thereof;

FIG. 3 is a side view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a bottom view thereof; and,

FIG. 7 is a perspective view thereof with the hinged arm pivoted to a closed position.

The broken lines shown on the drawings depict environment only and form no part of the claimed design. 

The ornamental design for a lamp, as shown and described. 